diff --git a/include/fractal.hpp b/include/fractal.hpp
index ee36dbe..097d13b 100644
--- a/include/fractal.hpp
+++ b/include/fractal.hpp
@@ -256,6 +256,7 @@ class generator_t {
 
 	bool m_has_ruleset = false;
 	group_id_t m_axiom;
+	mtl::fixed m_scale = 1;
 
 	etl::vector<leaf_t, g_max_leafs> m_leaf_buf1;
 	etl::vector<leaf_t, g_max_leafs> m_leaf_buf2;
@@ -289,6 +290,8 @@ public:
 		parse_ruleset(ruleset);
 	}
 
+	void set_scale(mtl::fixed scale) { m_scale = scale; }
+
 	void parse_ruleset(const ruleset_t& ruleset);
 
 	/**